梁同学2019-03-03 06:34:41
RE32课后题第1题问题B,在计算value of overall position时,为什么不用equity 头寸的value加上future contract头寸的value计算而是用equity头寸的value加上future position的profit来计算?即为什么不是175000000*(1+5.1%)+422*111500?感谢老师解答。
回答(1)
Dean2019-03-07 11:28:07
同学你好。
当我们在讨论降低equity 的敞口时,有两种方式。
1.以beta为目标进行调整(现金beta为0)(图1)
2.以无风险资产为目标进行调整。(图3)
一般来说,我们说cash并不是指真正的现金,而是将其投资于短期的无风险资产。但是在这里,这道题目表述的不是很清楚,这里的cash到底是真正的现金还是指无风险资产。所以让人有些迷惑,那我们是按照无风险资产来做的算出来是650,而可能这个章节的作者是按照真正的现金来理解的。在考试时会更严谨,不会有歧义的。
- 评论(0)
- 追问(2)
- 追问
-
老师您好,我问的是这道题的B小题,在计算value of overall position时,课后答案给出的是value of the stock portfolio+profit on the long futures position。难道不应该是value of the stock portfolio+value of the long futures position吗?:1. An investment management firm wishes to increase the beta for one of its portfolios under management from 0.95 to 1.20 for a three-month period. The portfolio has a market value of $175,000,000. The investment firm plans to use a futures contract priced at $105,790 in order to adjust the portfolio beta. The futures contract has a beta of 0.98. A. Calculate the number of futures contracts that should be bought or sold to achieve an increase in the portfolio beta. B. At the end of three months, the overall equity market is up 5.5 percent. The stock portfolio under management is up 5.1 percent. The futures contract is priced at $111,500. Calculate the value of the overall position and the effective beta of the portfolio.
- 追答
-
同学你好,在计算组合价值变动的时候,期货部分代入计算的应该是其profit 而不是期货的价值。
期货组合的价值变动不应该包含在计算中,因为去买期货的原因是希望调整beta来达到预期投资收益,它本身是作为工具,不应该加入到组合价值的计算。


评论
0/1000
追答
0/1000
+上传图片